dot-forward software package provides reads sendmail's .forward files under qmail, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dot-forward
dot-forward is installed in your system.
Make ensure the dot-forward package were installed using the commands given below,
$ sudo dpkg-query -l | grep dot-forward *
You will get with dot-forward package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | |
| Package | dot-forward |
| Version | 1:0.71-2 |
| Description | reads sendmail's .forward files under qmail |
| Sub Section |